I'd move to one sleep. Makes my day so much easier.

My son moved to one sleep at the same age. Our routine (roughly) was:
7 am - wake breakfast
9 am - morning tea
11 am - lunch (but usually knackered so more of a second snack)
11.30 am - bottle then bed
Wake up (usually 2-3 hours later) - offer rest of lunch
3.30 pm - arvo tea
6 pm - dinner followed bath book bed etc
Bed around 7 pm sleep by 7.30 pm

At the start keeping him up until 11.30 was hard but as he got older it's easier. He's now 2 yrs 3 months and sleep is normally around 12.30 to 1 pm.

Good luck.